eBay Sold Data API Alternatives Compared

Terapeak is eBay's own research tool, now rebranded Product Research and built into Seller Hub. It's free — any eBay seller account gets it — and it covers roughly three years of history. If you're a solo seller pricing your next listing by hand, this is often all you need.

One thing worth understanding: Terapeak shows aggregated analytics, not individual sold items. You get an average sold price, a price range, sell-through rate, and total sellers for your keyword — plus a per-listing table with each listing's average price and total units sold. But you never see the individual transactions: no per-item sold price, no per-item date, no condition. It answers "what's the average price for screen protectors?" — not "show me every screen protector that sold last week with its exact price." For manual research that's usually fine; to feed data into code or a pricing model, you need the individual records.

The three-year history is deeper than anything an API can give you — eBay only exposes about 90 days of completed sales outside this dashboard, so if you need multi-year trend data, Terapeak is the tool. The wall you hit is programmatic access: it's a dashboard, no public API returns its data as JSON, and developers in eBay's forums have confirmed there's no workaround via any current API.

Searching for an eBay completed items API is the first thing most developers try, and it's worth being precise about the current state, because it changed recently. There are three, and only one returns sold data:

• Finding API — gone. Deprecated in January 2024 and decommissioned in February 2025, and its findCompletedItems call had been restricted since 2020. Any tutorial pointing you here is out of date.
• Browse API — works, free, but returns active listings only. No sold or completed-sale data.
• Marketplace Insights API — the one official source of sold data, returning the last 90 days (the same window SoldComps covers). But it's a "Limited Release" API that requires Business-level approval before your production keyset can call it.

So if you're looking for a findCompletedItems replacement or an eBay sold items API, the official first-party answer is Marketplace Insights — it covers the same 90-day data. The catch is access: eBay's own docs currently state the API is "restricted and not open to new users at this time." Many individual developers and small teams simply can't get in. SoldComps has no approval process — create an API key in a minute and start pulling parsed JSON across 8 marketplaces.

Building it yourself is the right call for some teams — you own the pipeline and pay only for infrastructure. If you already run a scraping stack, adding eBay is a known quantity.

The cost that surprises people isn't the code, it's the upkeep. eBay actively fights automated traffic: IP blocks, CAPTCHAs, and challenge pages mean you need a residential proxy pool (typically $3–8/GB), and their search markup changes often enough that your parser will break on someone else's schedule. You're also on the hook for geo-correctness — the same eBay URL can return different currencies depending on the exit IP, which quietly corrupts your data if you don't catch it.

We know this because it's our stack: a four-layer proxy fallback chain, page classification, and currency-leak detection sit behind every request.

Bright Data is an enterprise data platform — a large residential proxy network, a managed browser, pre-built scrapers, and ready-made datasets. If you need eBay data alongside dozens of other sites at scale, a single vendor for all of it is a real advantage, and their infrastructure is excellent.

Two things to weigh for this specific use case. Their pre-built eBay scraper is oriented toward active product data — title, seller, brand, price, availability, reviews — not completed-sale history; sold comps aren't its headline output. And the pricing is built for volume: $1.50 per 1,000 records pay-as-you-go (with a free 5K-record/month tier), or subscription plans from ~$499/mo. That math works well at enterprise scale but gets heavy if you just want a few thousand sold comps a month.

You may find SoldComps on the Apify marketplace as an actor — that's us. It runs the same scraping engine as this API, so people understandably confuse the two. The difference is delivery: the Apify actor is a self-serve job you run inside Apify (usage-based billing, per-run), which suits one-off batch pulls and dataset exports. This hosted API is a persistent REST endpoint you call from your own code with an API key — better for anything ongoing, scheduled, or embedded in a product.